EmsiaetKadosh
84 lines
1.7 KiB
C++
84 lines
1.7 KiB
C++
//
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// Created by EmsiaetKadosh on 25-3-7.
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//
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#pragma once
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class File {
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public:
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std::wfstream file;
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explicit File(const std::wstring& path) : file(path, std::ios::in | std::ios::out | std::ios::binary) {}
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~File() { if (file.is_open()) file.close(); }
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};
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class Data {
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public:
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enum class DataType : int {
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Integer, Double, String, Boolean, Null, List, Object
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};
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private:
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String name;
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String value;
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DataType type;
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public:
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Data(String&& name, String&& value, const DataType type): name(std::move(name)), value(std::move(value)), type(type) {}
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};
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class DataLoader {
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File file;
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int parseString(int& line, String& string) {
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while (!file.file.eof()) {
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wchar c = file.file.get();
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if (c == L'\"') Success();
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if (c == L'\\') {
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c = file.file.get();
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}
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}
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errorInfo = L"Error: String never ends. EOF comes before a '\"'";
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Failed();
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}
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int loadUntil(int& line, wchar at = 0) {
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String name = {};
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String val = {};
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enum { identifier, eq, value, end } status = identifier;
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while (!file.file.eof()) {
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const wchar c = file.file.get();
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if (c == L'\n') ++line;
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switch (status) {
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case identifier:
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if (!isspace(c)) name.append(1, c);
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else if (!name.empty()) status = eq;
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break;
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case eq:
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if (c == L'=') status = value;
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else if (!isspace(c)) {
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errorInfo = L"Error: expected '=' after identifier at line " + std::to_wstring(line);
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Failed();
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}
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break;
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case value:
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if (!isspace(c)) { if (c == L'\"') {} }
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break;
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case end:
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break;
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}
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}
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}
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public:
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String errorInfo = {};
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explicit DataLoader(const String& path) : file(path) {}
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DataLoader(const DataLoader&) = delete;
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DataLoader(DataLoader&&) = delete;
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int load() {
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int line = 1;
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return loadUntil(line);
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}
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};
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